參數(shù)資料
型號(hào): AD9834
廠商: Analog Devices, Inc.
英文描述: Low Power, +2.3 V to +5.5 V, 50 MHz Complete DDS
中文描述: 低功耗,2.3 V至5.5 V,50 MHz的完整的DDS
文件頁(yè)數(shù): 2/20頁(yè)
文件大?。?/td> 236K
代理商: AD9834
AD9834
SPECIFICATIONS
1
–2–
REV PrM
PRELIMINARY TECHNICAL DATA
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
SIGNAL DAC SPECIFICATIONS
Resolution
Update Rate (f
MAX
)
I
OUT
Full Scale
Output Compliance
2
DC Accuracy:
Integral Nonlinearity
Differential Nonlinearity
10
Bits
MSPS
mA
V
50
2.8
0.8
±1
±0.5
LSB
LSB
DDS SPECIFICATIONS
Dynamic Specifications:
Signal to Noise Ratio
Total Harmonic Distortion
Spurious Free Dynamic Range (SFDR):
Wideband (0 to Nyquist)
NarrowBand (± 200 kHz)
Clock Feedthrough
Wake Up Time
50
dB
dBc
f
MCLK
= 50 MHz, f
OUT
= f
MCLK
/4096
f
MCLK
= 50 MHz, f
OUT
= f
MCLK
/4096
-53
50
72
dBc
dBc
dBc
ms
f
MCLK
= 50 MHz, f
OUT
= f
MCLK
/7
f
MCLK
= 50 MHz, f
OUT
= f
MCLK
/7
–55
1
COMPARATOR
Input Voltage Range
Input Capacitance
Input HighPass Cutoff Frequency
Input DC Resistance
Input DC Current
1
V p-p
pF
MHz
M
μ
A
ac-coupled internally
10
4
1
10
OUTPUT BUFFER
Output Rise/Fall Time
Output Jitter
20
100
ns
ps rms
Using a 15 pF Load
When DAC data MSB is output
VOLTAGE REFERENCE
Internal Reference
REFOUT Input Impedance
3
Reference TC
1.116
1.2
1
100
1.284
V
K
ppm/°C
1.2 V ± 7%
LOGIC INPUTS
V
INH
, Input High Voltage
D
VDD
–0.9
D
VDD
- 0.5
2
V
V
V
V
V
μA
pF
+3.6 V to +5.5 V Power Supply
+2.7 V to +3.6 V Power Supply
+2.3 V to + 2.7 V Power Supply
+3.6 V to +5.5 V Power Supply
+2.3 V to + 3.6 V Power Supply
V
INL
, Input Low Voltage
0.9
0.5
1
10
I
INH
, Input Current
C
IN
, Input Capacitance
POWER SUPPLIES
AVDD
DVDD
I
AA4
I
DD4
I
AA
+ I
DD4
f
MCLK
= 50 MHz, f
OUT
= f
MCLK
/7
2.3
2.3
5.5
5.5
5
V
V
mA
mA
mA
mA
mA
0.5 + 0.04/MHz
7
10
0.25
10
15
3 V Power Supply
5 V Power Supply
DAC and Internal Clock Powered Down
Low Power Sleep Mode
4
NOTES
1
Operating temperature range is as follows: B Version: –40°C to +85°C; typical specifications are at 25 C
2
Guaranteed by Design.
3
Applies when REFOUT is sourcing current. The impedance is higher when REFOUT is sinking current.
4
Measured with the digital inputs static and equal to 0 V or DVDD.
Specifications subject to change without notice. There is 95% test coverage of the digital circuitry.
(V
DD
= +2.3 V to +5.5 V; AGND = DGND = 0 V; T
A
= T
MIN
to T
MAX
; R
SET
= 6.8 k
R
LOAD
= 200
for IOUT and IOUTB unless otherwise noted)
;
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